The most populated city in the world - when major urban areas are included - is Tokyo, with more than 37 million residents.
Lightning strikes men about seven times more often than it does women.
More Miscellaneous Facts
World's first travel agencies: Cox & Kings, founded in 1758, and Thomas Cook, founded in 1860.
Barbie was introduced at the New York Toy Fair on 9 March 1959; her real name is Barbie Millicent Roberts and her parents are Ruth and Elliot Handler. Barbie has four sisters: Skipper (1964), Stacie (1992), Kelly (1995) and Krissy (1995). Ken, Barbie's boyfriend, debuted in 1961. Unfortunately, they split up on Valentine's Day 2004.